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恩一个意思.都是primase
DNA primase is an RNAP enzyme involved in the replication of DNA.
Primase catalyzes the synthesis of a short RNA segment (called a primer) complementary to a ssDNA template.Primase is of key importance in DNA replication because no known DNA polymerases can initiate the synthesis of a DNA strand without an initial RNA or DNA primer (for temporary DNA elongation).